If Manning doesn't return to the Giants, there are only a few logical landing spots. Denver is one of those and the Broncos could become a more appealing destination based on a candidate for their quarterbacks coach vacancy.

Giants offensive coordinator Mike Sullivan will interview for the Broncos' quarterbacks coach job, according to the NFL Network. Gettleman has given the Giants' assistant coaches the freedom to pursue other jobs.

If Sullivan gets the job with the Broncos, Manning would likely become more receptive to following his brother Peyton's footsteps of finishing his career in Denver.

Sullivan joined the Giants' offensive staff as the wide receivers coach when Manning was drafted in 2004. Sullivan remained the wide receivers coach until 2009 before spending two seasons as Manning's quarterbacks coach.

Sullivan left to become the Buccaneers' offensive coordinator in 2012, but he returned to the Giants as quarterbacks coach in 2015. He spent one season in that role before getting promoted to offensive coordinator for the past two seasons.

Manning and Sullivan have a strong bond, which seemingly would make a change of scenery more palatable for the quarterback. Manning has a no-trade clause in his contract, which has two years remaining.

Another candidate for the Broncos' quarterbacks job could cause Manning to instantly cross Denver off his list. Former Giants head coach Ben McAdoo is on the Broncos' radar for the opening, according to Mike Klis.

McAdoo, of course, was responsible for abruptly ending Manning's consecutive starts streak at 210 games last season. Manning was heart-broken by the benching and McAdoo was fired a day after Geno Smith started in a loss to the Raiders.

Jacksonville has been mentioned most frequently as a potential new home for Manning. The Jaguars secured the No. 3 seed in the AFC due mostly to a dominant defense, while fourth-year quarterback Blake Bortles has been inconsistent. The obvious tie to Jacksonville is former Giants coach Tom Coughlin, who is the Jaguars' executive vice president of football operations.

Manning said he won't make any decisions about his future until he meets with Gettleman in the coming weeks. Manning has made it clear that he wants to continue to start, so a separation could be possible if Gettleman decides to go with a young option, such as 2017 third-round pick Davis Webb or the No. 2 pick in the upcoming draft.